Phoenix police are reviewing security procedures following recent thefts of two guns and other equipment from police cars parked at two precinct stations.

The items reported stolen in the past three weeks include an AR-15 rifle and a handgun, along with an expandable police baton, a stun gun, two large canisters of pepper spray and a pocket knife.

Burglars targeted the South Mountain Precinct Substation, 2400 E. Broadway Road, on Jan. 18 and then again on Jan. 25, according to Sgt. Vince Lewis, a Phoenix police spokesman.

In the most recent incident, police vehicles parked at the Central City Precinct, 1600 E. Buckeye Road, were burglarized between Feb. 2 at 2 p.m. and Feb. 4 at 11 a.m., Lewis said.

Lewis said police are reviewing circumstances of the thefts, including whether vehicles were locked at the time.

There did not appear to be any signs of forced entry, Lewis said, and officers are responsible for properly securing weapons and other equipment.

He said officials will determine whether there were policy violations, whether any disciplinary measures are warranted and what security measures could be improved.

"For obvious reasons, we will not discuss specific security measures. We will actively seek solutions to correct any breach in protocol and shore up our securities," Lewis said. "As we continue to investigate the criminal side of this, an internal investigation would reveal whether any violation of policy occurred that may result in discipline."